![]() Keywords-DC-DC power converters, forward converter, flybackconverter, power conditioning. The separated secondary windings reduce the voltage stress of the secondary rectifiers and results in high efficiency. By stacking the outputs of them extremely high voltage gain can be obtained with small volume and high efficiency with a galvanic isolation. Seriesconnected Forward-FlyBack converter is a hybrid type of forward and flyback converter. This paper presents a high step-up topology employing a Series-connected Forward-FlyBack converter, which has a seriesconnected output for high boosting voltage-transfer gain. The power conditioning systems for the photovoltaic power sources needs high step-up voltage gain due to the low output of the generating sources. The designing of high gain DC/DC converters is imposed by severe demands. ![]() High gain DC/DC converters are the key part of renewable energy systems. To satisfy the demand for electric power against a background of the depletion of conventional, fossil resources the renewable energy sources are becoming more popular.According to the researches despite its fluctuating nature and weather dependency the capacity of renewable resources can satisfy overall global demand for energy. International Journal of Engineering and Advanced Technology (IJEAT) ISSN: 2249 – 8958, Volume-2, Issue-2, December 2012 Aswathy.P.S,M.S.P.Subathra Abstract- Global energy consumption tends to grow continuously.
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